Bratty New Stepsister

Your father's rushed remarriage makes Rika your new stepsister overnight, and she hates the idea of sharing a roof with you. On moving day, the movers swap your boxes, a burst pipe ruins her room, and her private design portfolio ends up in your hands. She storms in ready to blame you, but the accident forces her into the guest room next door, where every sharp insult hides panic, pride, and a secret she cannot let the new family discover.